JP3553271B2 - Exterior wall panel and its construction structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an extruded outer wall panel provided with a hollow hole along a longitudinal direction.
[0002]
[Prior art]
Generally, an outer wall panel provided with a hollow hole along a longitudinal direction is known.
[0003]
Conventionally, when attaching such an outer wall panel to a frame, etc., drill four holes at the four corners of the panel at the site, attach a Z-shaped clip there, and attach this to the frame It was fastened to the base material with bolts and fixed by welding.
[0004]
[Problems to be solved by the invention]
However, in the case of the above-mentioned conventional outer wall panel, there arises a problem that a part borne by on-site construction increases when the panel is attached to the frame.
[0005]
Further, since a hole is formed in the hollow portion, there is a disadvantage that the strength of the outer wall panel is reduced.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an outer wall panel capable of improving workability at a site without reducing the strength of the outer wall panel, and an object of the present invention. And
[0007]
[Means for Solving the Problems]
An outer wall panel according to the present invention for solving the above-mentioned problem is an outer wall panel in which a hollow hole is provided along a longitudinal direction and a bolt is fixed from a back surface side, and a solid portion is provided in a part of the hollow hole. The insert nut is buried in this dense part so that the screw hole for bolt fixing faces the back surface, and the head of the insert nut is set to a thickness equal to or slightly smaller than the thickness of the mounting bracket of the outer wall panel. part is one which is such so as to protrude from the back surface of the outer wall panel.
[0008]
Further, in the construction of the outer wall panel of the present invention for solving the above-mentioned problems, the head of the insert nut of the outer wall panel is fitted into a bolt hole provided on one surface side of a mounting bracket having an L-shaped cross section, In a state where the mounting bracket is in contact with the back surface of the outer wall panel so that the head is flush with or slightly recessed from the mounting bracket, the two are bolted together, and the other side of the mounting bracket is It is fixed to the lip portion of the lip grooved steel forming the shaft assembly.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
FIG. 1 shows an outline of a construction structure of the outer wall panel 1, and FIG. 2 shows a sectional view in which the outer wall panel 1 is fixed to a shaft set 5.
[0011]
That is, the outer wall panel 1 has an insert nut 3 embedded in an extruded panel 2 provided with a hollow hole 20 along the longitudinal direction.
[0012]
The extruded panel 2 is manufactured by extrusion, and a plurality of hollow holes 20 that are continuous in the longitudinal direction are provided at appropriate intervals in the width direction. At the position of the second hollow hole 20 from both sides in the width direction, a dense portion 21 in which the cement material forming the extruded panel 2 is in a dense state is formed. The solid portion 21 is not limited to the position of the second hollow hole 20 from both sides in the width direction. In addition, the cement material does not need to be in a solid state over the entire hollow part 20, and the cement material may be in a solid state in the hollow part 20 only at a position where the insert nut 3 is embedded. However, when the insert nut 3 is buried along the same longitudinal direction as the direction of the hollow portion 20 as in the present embodiment, it is better to make the cement material in a dense state over the entire hollow portion 20 by molding the extruded panel 2. It is preferable because it can be easily formed simply by changing a mold (not shown). When there is a sufficient space between the adjacent hollow portions 20, the insert nut 3 may be embedded in the gap between the hollow portions 20 without forming the dense portion 21.
[0013]
As shown in FIG. 3, the insert nut 3 has a female screw 31 threaded on an inner peripheral surface formed into a cylindrical shape, and a male screw 32 threaded on an outer peripheral surface. The head 33 is formed in a hexagonal flange shape. The insert nut 3 is preliminarily drilled at a position of the dense portion 21 on the back surface side of the extruded panel 2 and screwed into the prepared hole to be embedded in the extruded panel 2. It is said. In this embedding work, the screw can be screwed in using the hexagonal flange-shaped head 33, whereby the embedding can be performed more easily than screwing in using the female screw 31 on the inner peripheral surface. Since the insert nut 3 is made of a cement-based material such as the extruded panel 1, it is necessary that the insert nut 3 is easy to be screwed, does not damage the extruded panel 1 at the time of screwing, and has a small decrease in pull-out strength. Become. Therefore, as the insert nut 3, it is possible to use the double-thread screw insert nut 3 in which the outer thread 32 of the outer peripheral surface is constituted by two types of screw threads having different angles and heights, in terms of workability and pull-out strength. Is preferred.
[0014]
The outer wall panel 1 configured in this manner is fixed to the shaft set 5 with bolts 6 via the receiving fittings 4a and the joining fittings 4b.
[0015]
The receiving member 4a has an L-shaped cross section, and a bolt hole 40 is provided on one surface thereof. The receiving metal fitting 4 a is fixed with the bolt 6 by abutting the bolt hole 40 with the insert nut 3 embedded in the lower end of the outer wall panel 1.
[0016]
On the other hand, the joint fitting 4b is formed in an L-shaped cross section, and has an elongated bolt hole 40 provided on one surface thereof, and a bolt drawn toward the joint fitting 4b by fastening the bolt 6 on the other surface. A stop piece 41 is provided. Then, the bolt 6 is fastened in a state where the locking piece 41 is inserted into the groove of the lip grooved steel 50 constituting the shaft assembly 5, so that the lip is sandwiched between the locking piece 41 and the joint fitting 4 b. As a result, the joint fitting 4b is fixed to the shaft set 5.
[0017]
Then, the outer wall panel 1 is brought into contact with the shaft assembly 5 such that the receiving fitting 4a is placed on the lower side 5a of the shaft assembly 5. In this state, the outer wall panel 1 is attached to the frame 5 by aligning the bolt holes 40 of the joint fitting 4b with the insert nuts 3 of the outer wall panel 1 and tightening the bolts 6.
[0018]
At this time, as shown in FIG. 4, the thickness of the head 33 of the insert nut 3 is set to be equal to or slightly smaller than the thickness of the receiving metal fitting 4a and the joining metal fitting 4b. Thus, the insert nut 3 embedded in the outer wall panel 1 can be prevented from being pulled out from the outer wall panel 1 by tightening the bolt 6, and the outer wall panel 1 can be attached to the shaft set 5.
[0019]
In the present embodiment, the extruded panel 2 is provided with hollow holes 20 having a substantially square cross section at equal intervals, but the hollow holes 20 are limited to those having a substantially square cross section. However, the intervals between the hollow holes 20 are not limited to those equalized. For example, as shown in FIG. 5, an extruded panel 2 in which hollow holes 20 of different sizes are provided in a certain repeating unit may be used.
[0020]
The outer wall panel 1 may be provided with an opening 22 as shown in FIGS. 6 and 7. However, in this case, there is a concern that the strength may be reduced due to the provision of the opening 22. Therefore, the reinforcing steel material 7 is inserted into the hollow portions 20 located on both sides of the opening 22 and fixed with screws 71, It is preferable that a long plate-shaped reinforcing steel plate 8 is attached to portions located on both sides of the steel sheet for reinforcement.
[0021]
【The invention's effect】
As described above, according to the present invention, since an insert nut is buried in an outer wall panel in a factory or the like in advance, it is not necessary to process the wall panel on site for joining to a frame, which is simple. Mounting work can be performed.
[0022]
Also, by simply bolting the insert nut buried in the outer wall panel and the mounting bracket fastened to the frame, the hollow outer wall can be easily joined to the frame, and the number of parts of the bracket is small, which is part of the on-site construction. And the construction cost can be reduced.
[0023]
In addition, by providing a solid part in a part of the hollow hole and burying an insert nut in this solid part, there is no structural weak point, the strength of the joint is increased and the wind resistance, impact resistance etc. are excellent The effect is obtained.
[0024]
Furthermore, according to the construction structure of the present invention, since the head of the insert nut is bolted so that the head of the insert nut is flush with or slightly recessed from the mounting bracket, the buried insert nut is pulled in the direction in which it is pulled out by the bolt fixation. It is possible to securely fix the outer wall panel to the frame without worrying that the outer panel will be damaged.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a construction structure of an outer wall panel.
FIGS. 2A and 2B are cross-sectional views showing a state in which an outer wall panel is fixed to a frame structure.
FIG. 3 is a partial perspective view showing an embedded state of an insert nut.
FIG. 4 is a partially enlarged sectional view showing a fixing portion of the outer wall panel.
FIG. 5 is a perspective view showing another embodiment of the outer wall panel.
FIG. 6 is an exploded perspective view showing another embodiment of the construction structure of the outer wall panel.
FIG. 7 is an exploded perspective view showing still another embodiment of the construction structure of the outer wall panel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer wall panel 2 Extruded panel 20 Hollow hole 21 Solid part 3 Insert nut 33 Head 4a Receiving bracket (mounting bracket)
4b Joining bracket (mounting bracket)
40 bolt hole 5 frame 50 lip grooved steel 6 bolt

Claims (2)

An outer wall panel in which a hollow hole is provided along the longitudinal direction and bolted from the back side, wherein a solid portion is provided in a part of the hollow hole, and a screw hole for bolt fixing faces the back surface. Thus, the insert nut is buried in the dense portion, and the head of the insert nut projects from the back surface of the outer wall panel so as to have a thickness equal to or slightly smaller than the thickness of the mounting bracket of the outer wall panel . An outer wall panel, characterized in that: The head of the insert nut of the outer wall panel is fitted into a bolt hole provided on one surface side of the mounting bracket having an L-shaped cross section, and the head is flush with or slightly recessed from the mounting bracket. 2. A lip portion of a lip grooved steel forming a shaft assembly, wherein both of the mounting brackets are fixed by bolts while the mounting bracket is in contact with the back surface of the outer wall panel. Exterior wall panel construction structure.

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